Batter:
Combine all ingredients in a large bowl, mixing well until
incorporated. Keep refrigerated until ready to use.

Filling:
Fold all ingredients together in a bowl until well incorporated but
not completely smooth.

Syrup:
Combine all ingredients in a saucepan over medium-high heat. Stir
until sugar dissolves. Bring to a boil and let reduce by 1/3.

French Toast:
Preheat oven to 350 degrees F.

Heat a large saute pan and then add butter. Dredge the bread in the
batter and place in the pan. Cook until golden brown on both sides,
approximately 2 minutes. Remove from pan and let cool. Divide
filling between 2 pieces of the bread top with the remaining 2
pieces of bread. Transfer French toast to oven and bake for 8
minutes.

Cut each French toast in half and serve with the cinnamon syrup and,
if desired, a large scoop of vanilla ice cream and fresh berries.